OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

vdpa: Restore packet receive filtering state relative with _F_CTRL_RX_EXTRA feature

Browse Source 
This patch refactors vhost_vdpa_net_load_rx() to
restore the packet receive filtering state in relation to
VIRTIO_NET_F_CTRL_RX_EXTRA feature at device's startup.

Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
Message-Id: <abddc477a476f756de6e3d24c0e9f7b21c99a4c1.1688797728.git.yin31149@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Hawkins Jiawei 2023-07-08 17:24:51 +08:00 committed by Michael S. Tsirkin
parent ea6eec4979
commit 4fd180c7bb
1 changed files with 88 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
net/vhost-vdpa.c
View File

@ -873,6 +873,94 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s,
}
}
if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_RX_EXTRA)) {
return 0;
}
/*
* According to virtio_net_reset(), device turns all-unicast mode
* off by default.
*
* Therefore, QEMU should only send this CVQ command if the driver
* sets all-unicast mode on, different from the device's defaults.
*
* Note that the device's defaults can mismatch the driver's
* configuration only at live migration.
*/
if (n->alluni) {
dev_written = vhost_vdpa_net_load_rx_mode(s,
VIRTIO_NET_CTRL_RX_ALLUNI, 1);
if (dev_written < 0) {
return dev_written;
}
if (*s->status != VIRTIO_NET_OK) {
return -EIO;
}
}
/*
* According to virtio_net_reset(), device turns non-multicast mode
* off by default.
*
* Therefore, QEMU should only send this CVQ command if the driver
* sets non-multicast mode on, different from the device's defaults.
*
* Note that the device's defaults can mismatch the driver's
* configuration only at live migration.
*/
if (n->nomulti) {
dev_written = vhost_vdpa_net_load_rx_mode(s,
VIRTIO_NET_CTRL_RX_NOMULTI, 1);
if (dev_written < 0) {
return dev_written;
}
if (*s->status != VIRTIO_NET_OK) {
return -EIO;
}
}
/*
* According to virtio_net_reset(), device turns non-unicast mode
* off by default.
*
* Therefore, QEMU should only send this CVQ command if the driver
* sets non-unicast mode on, different from the device's defaults.
*
* Note that the device's defaults can mismatch the driver's
* configuration only at live migration.
*/
if (n->nouni) {
dev_written = vhost_vdpa_net_load_rx_mode(s,
VIRTIO_NET_CTRL_RX_NOUNI, 1);
if (dev_written < 0) {
return dev_written;
}
if (*s->status != VIRTIO_NET_OK) {
return -EIO;
}
}
/*
* According to virtio_net_reset(), device turns non-broadcast mode
* off by default.
*
* Therefore, QEMU should only send this CVQ command if the driver
* sets non-broadcast mode on, different from the device's defaults.
*
* Note that the device's defaults can mismatch the driver's
* configuration only at live migration.
*/
if (n->nobcast) {
dev_written = vhost_vdpa_net_load_rx_mode(s,
VIRTIO_NET_CTRL_RX_NOBCAST, 1);
if (dev_written < 0) {
return dev_written;
}
if (*s->status != VIRTIO_NET_OK) {
return -EIO;
}
}
return 0;
}